Coil-box switch for ignition systems.



PATENTED JUNE 16, 1908.

R. VARLEY.

COIL BOX SWITCH FOR IGNI TION SYSTEMS.

APPLIOATIQN FILED MAR.25,1907.

T0 SPARK PLUGS T P R Y PL U6 .5

Jn uc n l'or y 1 5% cit-r0: 11c s UNITED STATES PATENT OFFICE.

RICHARD VARLEY, OF ENGLEWOOD, NEW JERSEY, ASSIGNOR TO VARLEY DUPLEX MAGNET COMPANY, A CORPORATION OF NEW JERSEY.

COIL-BOX SWITCH FOR IGNITION SYSTEMS No. 891,017. Specification of Letters Patent. Patented June 16, 1908.

Application filed March 25, 1907. Serial N 0. 364,496.

To all whom it may concern: chamber or cavity in which the switch parts Be it known that I, RICHARD VARLEY, a are contained. citizen of the United States, residing at 1311- 3 and 4 indicate insulating blocks of hard glewood, in the county of Bergen and State rubber or suitable material which are :1 of New Jersey, have invented certain new screwed within the cavity 2, and which su 60 and useful Improvements ina Coil -BOX port certain spring blades forming part of tlie Switch for Ignition Systems, of which the switch mechanism. Each of the blocks 3 following is asfull, clear, and exact descrip: and 4 has spring blades fastened thereto on 'tion. 1 both sides, all of the spring -blades extending My'invention relates to ignition systems in parallel directions. I j

for explosion engines, and more particularly On a central line between the blocks 3 and pertains to a form of foot switch on the front 4 and symmetrically with respect thereto is of the coilbox by which the circuits of a pivoted a cylindrical block 5. The cylinmagneto generator or battery for ignition drical block 5 carries copper se men'ts 6 and g purposes, are controlled. 7, which constitute the -switch e ements. 70

The'better class of motor vehicles are now 8 denotes a handle orarm projecting radicommonly equipped with two entirely sepally downward from the block 5, and secured arate'ignitionlsys-tems, one of which depends thereto by the'screws 9. upon a battery, and the other upon a mag- The segments 6 and 7 cooperate with cerf". neto generator. By having two entirely sep tain spring blades on. the blocks 3 and 4. On 75 arate ignition systems, the machine is not the outside of'the block 3 there are two blades disabled in case of failure of either one. 10 and '11, which engage the segment 6 at Moreover, the battery ignition can always be certain times. on the outside of the block 4 I. used. to start the vehicle from a state of rest there are two spring blades 12 and 13 which 17.1 and the-magneto ignition thereafter used so engage the other segment The position of as to avoid exhaustion of the battery, and the segments on the block is such that the obtainia hotter spark at high speeds. It is blades 10 and 11 are in contact with the seg desirable that these circuits, be controllable in ment 6whe'n the handle 8 is at its middle po' thei'easiest possible way, and referably by sition, and also at its right-hand position of 3a thefootof the driver or chau eur. A 0011- throw; The blades 12 and 13 engage the g5 venient and desirable way of rendering the segment 7 at the right-hand position of the dynamo or magneto inactive is to merely arm 8 but not at the central or left-hand pogroundthe potential terminal thereof by a sition' thereof. On' the inside faces of the single wire led to a convenient ground point fixed blocks 3 and 4 there are spring blades or switch on the dash. On the other hand, 14 and 15, which receive between them arunthe battery is simply open circuite'd to disning plu .P of the ordinary form.

7 connect it. In carryingout the present in- At its ower end the arm 8 moves over the vention, I secure all of these functions by a surface' of the metallic plate 16, which is switch onthe front of the coil box which is screwed or otherwise fastened to the coil box 40 very simple, strong and durable, which at the points 17. 18denotes a plate which' makes the circuits efficiently, and which is overlies the arm 8 and is fastened in properly operable by the foot of the driver. spaced relation to the plate 16 for this pur- The invention further consists in the feapose by the screws 19. 20 indicates .spring tures of'constructiom and conbination hereimpelled pins or plungers in the plate 16 45 inafter set forth and claimed. which on age a depression 21 in the arm 8 so In the drawings: Figure 1 is a front view as to hol said arm in the positions to which of a coil box with a switch embodying the it is moved either centrally orat the extreme principles of my invention appliedthereto', limits of its throw. One of these pins is Fig. 2 is a diagram of the electrlcal circuits. covered by the arm 8 in Fig. 1. The left 50 Referring to the drawings in which like hand position of thearm is shown adapted to parts are designated by the same reference connect the magneto generator. into circuit, sign, 1 indicates the usual coil box of the mo-' the right-hand position to connect the battor vehicle, and which is commonl secured, tery into circuit, and the middleposition to to the dash in front of the driver. he front disconnect both systems. The lower end of of this box is recessed at 2, so as to form a the arm 8 has a roller or handle-22, which may be kicked by the foot to move the lever from one side to the other. It is evident that the substantial construction of the arm 8 I with its guiding plates 16 and 18 permits of effective for ignition urposes.

. or potential side of the armature.

the somewhat rough usage to which the switch mechanism is subjected when kickedby the foot in this way.

The electrical circuits and connections are as follows: A represents a magneto gener ator of a type in common use, having adistributer organized therewith. Z is the usual ground connection from this generator A, and Z represents a wire from the ung'rounded It is evident that if the wire I is grounded in any way that the generator. armature will bethereby. short circuited andso rendered; in-

The 'wire 1 is 'connected-to'the b ade 10,.and aground connection is made from the: spring 1111 by wire 1% B is a battery having-one terminal grounded by the wire m, andhaving its other terminal conneetedby' the wirem i to" fromrthe lade 14 to the usuahc'oilsG and the distributor-D; this circuit being com letedto serted between the blades ls tand-lz'i the bat-.

tery circuit is completed byv moving the arm 1 position This engages so that a circuit-is completed-from batteryB',

J through wire mfiblade spring 12 segment 7.,

blade 13, to blade 15 (whicliifor convemence is made continuous and integral-withthe blade 13, by aconnection 13 running plug 1?, blade 14', through one or another of. the collsC, and circuit controller-D, to ground. The battery is therefore in circuit fonproperriignition-purposes. Atthis time the potentia connection. Z of the generator A is grounded'becausethesegment 6-is in engagementwith both 'the- 1 blades 10 and 1-1, Thewire l istherefore dis rectly grounded, at Z 4. This-condition vcone tinues when the 'arm is movedinto the-cane blades 10 and all;

;lel directions block. having connected because the segment 7 has moved awayv from the blades 12 and 13. Accordingly bothig'nition systems are inoperative when the arm 8 is at its central' 0sition.- When the arm 8 is moved to its left and position, the segment 7 is still unconnected. from the blades 12 and 13, so the battery is still unconnected, but the segment 6 is nowmoved out of engagement with the blades 10 and 11,

so that the potential terminal I of the generator A is no longer grounded at Z. Aceordingly the generator becomes-effective to operate its individual ignition sstem. It is to be understood that the ignit on systemof the generator Ais entirely separate from that of the battery B, and being of, the ordinary form is not shown in detail. seen that I'accomplish all-of the functions set forth in the reliminary part of this specificathe generator ineffective y short circuiting its armature. the sprm blade 12. Thereilsalso atwlre m What I claim, is-: 1. In a coilbox switch, a coil box having a ,recess'in its front face, blocks in said recess,

springblades rojectin roin said blocks, a rotatable segments movable to engage certain of said'blades, and havin a depending lever, and a plugadapted to. e inserted betweenthe remaining of-said'blades to complete a circuit connection-therebetweeml 2. In a coil box switch, a pair ofblocks each having spring blades depending from both side faces, a rotatable block having segments adapted to en a etheblades-ofithe outside faces of sai :adapted to be received betw'een-the'blades on: the inside faces of said blocks'to complete 8.

looks, and. a plug circuitconnection therebetween. 0

In witnesswhereof, I. subscribe my signa- 'ture, inithe presence of two witnesses.

" l RICHARD VARLEY. Witnesses:

\WALDO', M.- CHAPIN,

Mar BIRD.-

downward in paral Thusit will bettion, rendermg the battery ineflective when fdesired lby-open circuitin it, and rendering 

